Abstract

Two new species Laccaria pseudoalba and L. subroseoalbescens are described and illustrated, based on morphological characteristics and molecular phylogenetic analysis. Two new records, Laccaria umbilicata and L. yunnanensis from Thailand, are also reported. Laccaria subroseoalbescens is characterized by small basidiomata, stipe equal with an enlarged base, and nearly subclavate, pale pink to light orange. Laccaria pseudoalba is characterized by pale orange to orange white pileus, has umbo when young on the pileus, and fistulose stipe of the pale to pastel red color. Phylogenetic analysis based on sequence data from rDNA internal transcribed spacer ITS1-5.8S-ITS2 rDNA (ITS), nuc 28S rDNA (28S), RNA polymerase II subunit 2 (rpb2), and translation elongation factor 1-α (tef1-α) are provided as further evidence. Molecular analysis confirms the phylogenetic positions of the two new species and two new records. The differences in characteristics of these two new species and closely related species are discussed herein.

Addeddate

2025-04-29 16:53:17

Bhl_virtual_titleid

210915

Bhl_virtual_volume

v.107 (2024)

Call number

10_3897_mycokeys_107_127907

Call-number

10_3897_mycokeys_107_127907

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0

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article

Identifier

newspeciesnewre107tang

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ark:/13960/s29jwjf3qkd

Identifier-bib

10_3897_mycokeys_107_127907

Identifier-doi

10.3897/mycokeys.107.127907

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Possible copyright status

In copyright. Digitized with the permission of the rights holder.

Ppi

300

Source

MycoKeys 107

Year

2024

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